Gas pressure regulator



Sept. 19, 1933. c; W' 1,927,669

GAS PRESSURE REGULATOR Filed March 8, 1932 INVENTOR (Kira/Me flaw-aw ATTORNEY! Patented Sept. 19, 1933 v UN E STATES- -Cl'ar ence H."Morrow, Cleveland, hio,t:a'ssignor c a .;to The Hotstream Heater Company, Cleveland,

,-.Ohio, a corporation of Ohio Anpuaaqn March 8,

I This invention relates to pressure regulators such as one, for insertionbetween a gas burner and its source of gas supply, for maintaining gas pressure at, the burner substantially inde- ,.*Z pendent of fluctuations in pressure at the source. Devicesffor the purposeare not new inthe art, but the object of the present inventionis' to provide a novel construction for such', a regulator, of comparative simplicity, small size, and correspondingly inexpensive to manufacturel Another object is to provide a novel spring arrangement whereby adjustment of the regulator to meet varying conditions is hadmerely by the employment of a greater or smaller number'of similar springs. V h

The exact nature of thisinventiontogether with further. objects and advantages thereof will be apparent from the following description taken in connection with the accompanying longitudinal section showing an eriribodiment of the'inventionwithits parts in different positions; Figs. 3v and 4 are transverse sections to reduced scale in the plane of line 3-4, Fig.2, Fig. 3 as looking upwardsand Fig. its looking downwards; the section of Fig. 1 being as. in the line 1-1, Fig. 3, and the section ofFig. 2 being as in the line 2- 2, Fig. ,band Fig. 5 is a, sec-1 tional detail corresponding to Fig. 2 but illustrating the employment of a plurality of springs.

With reference now to the drawing, -1 is a housing member recessed as indicated to .pro-

vide a cavity 2, with a flange 3 about the mouth e 7 thereof. The housing member is preferably symmetrical about an axis as indicated in the drawing, and has a central opening 4' bearing,

external threads to provide an outlet connection for the cavity 2. v

A diaphragm 5 is arranged to overlie the flange 3 of the housing member 1, and being of flexible material such as leather, is preferably provided with a metallic backing 6. The diaphragm 5 has a central opening as will. appear.

A closure member '7 is provided, having a flange 8-cooperative with the fiange3 of the housing member 1 to secure the diaphragm at its periphery through the employment of bolts 9. The closure. member 7 is recessed as'indicated at 10 to allow free motion to the ,dia-:

9 phragm means, and is apertured as at 11 to ex pose the back of the diaphragm means to free communication with the atmosphere. The'closure member has a central through opening 12 with an external projection 13 thereabout internally threaded as indicated to provide an opening lil in m m' p e: 16. I

drawing, in'which Figs. 1 and 2 are views in j "tending through spacers 24 by which the periph "ery'22 of the carrierf2'1- is maintained in rigidly spaced relationwith'thediaphragm means; As v e 1 shown, the rivets 2 3" also serve to secure the diaphragmbacking'6. 5 -";"Although the 'flexur'e of the diaphragm fmeans 1932. Serial 59,71,506 .j 1 ,3 Claims. Ql; 5 0 23 'f,

-- Li J inletjopening, and 'a correspondinginternal proe' r jection, 14 leading substantially tolthe plane of the periphery, of the; diaphragmfme'ans'. flThe central opening ofthefcliaphragm means isoi. such'size, that the diaphragm overlies the prnjection 14, which is ihteriorly threaded as at 15 j to receiye a nipple l6. This nip'ple is flanged as at 17"so that it'may be turned into the threads 1 v [15 to? grip and seal the diaphragm about the A central. opening of the latter; asjs'hown" I V. 65 Valve means are arranged'in' the jcav ty 2 and I carried by-the diaphragm means tojc'm'itrol' the:

' cured by a screw 20 j ii -a corresponding socket in a carrier 21; This carrier is formedgenerally' 3 "like'fia dished wheel as indicatedFiggljwith an annularperiphery- 22. a Thisiperiphejry" is se-j cured with the'diaphragm'means as by 'rivetsj23 locatedbetween the spokes ofthewheel and exmay be sufiicient toallo'w thevalvefmeans'to -assur'ne 'the 'position shown Fig. -1, spring means are provided for yieldably urging the valve means 5 from this position. Such spring means maybe that the diaphragm issecured thereby, and the 9 I '1 arms '26 are of sufiicient length to extend outwardly of the nipple and overlie the peripheral part 22 of the'valve carrier21 between the rivets 23., The arms 26 are bent from the plane of the body part of the spider to yieldably urge 93 q the parts to the position of Fig. 2. Preferably the spider arms are the same in number as the spoke parts of the valve carrier andare maintained indexed overlying the latter by pair's of I integralears Operation will be apparent. The'parts beingf. v

yieldably maintained in the position shown Fig;- 2, when the gas or other fluid to'b'e controlled isQ- admitted through the inlet opening 12 under 6105 pressure, if the pressure be insufficient to over--. 3

come the spring means, the fiuid'will have substantially unobstructed passage through the regulator and out the outlet 4 thereof. As .the inlet pressure is increased, however, this-pressure W 27 upstanding from th v v a Ema ner. v I

acts against'the diaphragm means to move the latter against the action of the'spring means,

toward the position 'of Fig. 1. As the valve means approaches the nipple, the outlet opening in the latter is obstructed. The more the ob-' struction, the less will be the flow and the less pressure therefore-exerted against "the-diaphragm means. Consequently with any given inlet rpressure the valve means will automaticallyassume a position of balance where flow is properly restricted throughthe regulator, and the outlet.

pressure of the latter will, therefore, be,main,-

tained substantially constant regardless of inlet pressure. The position or} zthegvalve :means shown in Fig. 1 is, of course,:one approached-but never actually obtained in service.

Where higher inlet pressures are 150 be met, anumber of similar spring means may be em ployed in stacked relation, all secured together by the nipple 16 as indicated Fig. .5. In any event it will 'be observed Tthat the arms '26 act fasileaf springs, 'assingleleaf springs wherefa singlespider is employed as inF igS.i1-'4=, and as multiple leaf springs where alplurality of spiders are employed as in'Fig."5. v

What I claimis: V I 1. In a pressure regulator ,of the class described, a housing member recessed to provide 'a cavity and having an outlet opening-leading therefrom; ,diaphragm .means overlying the mouth ofgsaidcavity .andhaving an.opening,.a

closure member overlyingsaid,diaphragm;means andsecured with said housingmemberaboutthe mouth of said cavity -to secure said diaphragm about the periphery 1 of the latter, said closure;

member being I apertured' to expose .the I back 7 of said diaphragm means to freecommunication with the. atmosphere, and having an Iinlet opening leading tolthat of I said :diaphragmmeans. a

nipple arranged in said closure member opening and having a flange to securev lsaid diaphragm Kmeans' about the opening -of the .latter, valve means in said cavity carried .by said diaphragm means to control the. opening .in (said; nipple, ,and spring means secured by said :nipple flange-and arranged toyieldably urge. said-valve means from said nipple. I V I v 2. .In a pressure regulator of the. class described,

Ia housing member recessed to provide a cavityv and having anoutlet opening leading therefrom, diaphragm means overlying the mouth of'said cavity and having an opening, aclosure member overlying said diaphragm means and secured with saidhousing member about the mouth of said tcavity .to secure said diaphragm :about the periphery :of .;thenlatter, said' closure r-member being apertured to expose the back ofsaid diaphragm meansto free communication with the ,to vthat of said diaphragm means, a nipple arranged in the opening of said diaphragm and iturnedinto said :closure member inlet opening, and flanged tozz'secure said diaphragm means 'aagainstsaidclosure member, valve means in said ps5. .;-atmosphere, and having an inlet opening leading cavity,carriedbyasaid diaphragm means to con- V trol the opening in-said nipple, and a plurality of similar spring'mea'n's in stacked relation secured by said nipple flange and arranged to yieldably urge said valvemeans'from said nipple.

3. In a pressure-regulator of the class; described,-

ahousing memberrec'essed to provide a cavity and'having an outlet opening leading therefrom, diaphragm meansoverlying themouth of said cavity and having an opening,'a closure-member overlying said diaphragm means and secured said cavity carried by :said diaphragm means'fto controlthe openingiin said nipple, and spring means secured by said nippleflangerand arwith saidhousing "member about the mouth of ranged to yieldably. urge said valve means. from i sfa'id nipplesai'd valvemeans includingva wheel member peripherally secured with" said diaphragm 'meansi'and saidspring means including a spider member with arms bearing upon th peripherahpartof, said wheel member. 1

, 'CLARENCE'HMQRROW. 

